The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.

In the present work, the influence of adding nano-carbon black (0, 0.5, 1, 1.5, 2, 2.5 and 3wt%) on the performance of MgO-CaO composites is discussed. Physical (bulk density, apparent porosity, and hydration resistance), mechanical (cold crushing strength), and thermo-chemical (corrosion resistance) properties of the specimens were evaluated. After formulation and shaping, all compositions were tempered...

In this research study, a comparative evaluation of the additional impact of nanometer-sized tetravalent oxides [Zirconia (ZrO2), Titania (TiO2), and Silica (SiO2)] on the properties and performance of Doloma-Magnesia (MgO-CaO) ceramic refractories, with an emphasis on their hydration resistance improvement, has been done. For this purpose, from 0 to 2.5wt% ZrO2, TiO2, and SiO2 nanometer-sized particles...

The high hydration potential of CaO and MgO phases restricted the application of Mag-Dol refractory composites. In this study, the impact of nano-silica (SiO2) addition on the physical, mechanical, thermo-mechanical as well as microstructure of Mag-Dol refractory composites is investigated. Mag-Dol compositions were prepared by using calcined dolomite and magnesite particles (micron, 0–1, 1–3, 3–5,...

Many benefits of the MgO-C refractory bricks such as excellent corrosion resistance, high thermal shock resistance, good mechanical strength at high temperatures, and permeability have attracted attention of consumers in various industries. But on the other hand, the low oxidation resistance of these refractory bricks at high temperatures has restricted their application. For this purpose, in this...

The main drawback of magnesia-graphite refractories is the high carbon oxidation potential at high temperatures that lead to low strength and thermochemical resistance. The aim of this study is to evaluate the impact of Titania nanoparticles addition on the microstructure and properties of magnesia-graphite refractories. 0, 0.25, 0.5, 1, 1.25 and 1.5wt% Titania nanoparticles added to the magnesia-graphite...

Dolomite base refractories have advantages such as high refractoriness, potential to produce pure steel molten, high alkaline corrosion resistance, and economical for consumers. However, application of these refractories has been limited due to their high potential to hydration with atmosphere humidity. In this research work, the impact of ZrSiO4 nanoparticles addition on the physical, thermo-mechanical,...

In this research, the impact of Al2O3 nanoparticles addition on microstructure, mechanical, and physical properties of bauxite self–flowing low-cement castables were investigated. Also, the optimum amount of Al2O3 nanoparticles is determined. For this propose, up to 3wt% Al2O3 nanoparticles were added to the bauxite castable compositions. The physical and mechanical properties of castable compositions...

MgO-C refractory ceramic composites are widely used in the steel manufacturing industry, casting ladle, basic oxygen converters, electric arc furnaces, and in secondary steel production. Despite the advantages of this type refractory ceramic composite such as good compatibility, high thermal shock resistance, and low thermal expansion and wettability, their application is restricted due to its low...

In this work the effect of nano- and microZrO2 addition on the densification and hydration resistance of MgO–CaO refractories was investigated. 0, 2, 4, 6 and 8wt% ZrO2 was added to MgO–CaO refractories that contain 35wt% CaO. The crystalline phases and microstructure characteristics of specimens sintered at 1650°C for 5h in an electric furnace were studied by X-ray diffraction (XRD) and scanning...

Accessibility options

You can change the active elements on the page (buttons and links) by pressing a combination of keys:

TAB go to the next element

SHIFT + TAB go to the previous element

Financed by the National Centre for Research and Development under grant No. SP/I/1/77065/10 by the strategic scientific research and experimental development program:
SYNAT - “Interdisciplinary System for Interactive Scientific and Scientific-Technical Information”.